# Solved topic cannot be loaded **URL:** https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947 **Category:** Bug **Tags:** solved **Created:** [March 26, 2025, 1:33pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947 "2025-03-26T13:33:34Z") **Posts on this page:** 7 **Page:** 1
### Author: ![Don](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/don/32/228726_2.png) [@Don](https://meta.discourse.org/u/Don) #### Post date: [March 26, 2025, 1:33pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/1 "2025-03-26T13:33:34Z")
Hello 馃憢 On my site we have some solved topics which cannot be loaded. ![Screenshot 2025-03-26 at 14.20.10](https://global.discourse-cdn.com/meta/original/4X/0/4/b/04b6a818259b5d3a44bb0512e02c7af5be1744b4.png) ```plaintext Message (2 copies reported) NoMethodError (undefined method `user' for nil) app/controllers/application_controller.rb:506:in `render_json_dump' app/controllers/topics_controller.rb:1387:in `block (2 levels) in perform_show_response' app/controllers/topics_controller.rb:1377:in `perform_show_response' app/controllers/topics_controller.rb:191:in `show' app/controllers/application_controller.rb:427:in `block in with_resolved_locale' app/controllers/application_controller.rb:427:in `with_resolved_locale' lib/middleware/omniauth_bypass_middleware.rb:35:in `call' lib/content_security_policy/middleware.rb:12:in `call' lib/middleware/anonymous_cache.rb:410:in `call' lib/middleware/csp_script_nonce_injector.rb:12:in `call' config/initializers/008-rack-cors.rb:26:in `call' lib/middleware/default_headers.rb:13:in `call' config/initializers/100-quiet_logger.rb:20:in `call' config/initializers/100-silence_logger.rb:29:in `call' lib/middleware/enforce_hostname.rb:24:in `call' lib/middleware/processing_request.rb:12:in `call' lib/middleware/request_tracker.rb:385:in `call' Backtrace plugins/discourse-solved/lib/discourse_solved/topic_view_serializer_extension.rb:21:in `accepted_answer_post_info' plugins/discourse-solved/lib/discourse_solved/topic_view_serializer_extension.rb:13:in `accepted_answer' (eval at /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/active_model_serializers-0.8.4/lib/active_model/serializer.rb:467):75:in `_fast_attributes' active_model_serializers (0.8.4) lib/active_model/serializer.rb:468:in `rescue in attributes' active_model_serializers (0.8.4) lib/active_model/serializer.rb:455:in `attributes' active_model_serializers (0.8.4) lib/active_model/serializer.rb:480:in `_serializable_hash' active_model_serializers (0.8.4) lib/active_model/serializer.rb:359:in `serializable_hash' active_model_serializers (0.8.4) lib/active_model/serializer.rb:347:in `as_json' activesupport (7.2.2.1) lib/active_support/json/encoding.rb:23:in `encode' activesupport (7.2.2.1) lib/active_support/json/encoding.rb:23:in `encode' activesupport (7.2.2.1) lib/active_support/core_ext/object/json.rb:42:in `to_json' active_model_serializers (0.8.4) lib/active_model/serializer.rb:331:in `to_json' multi_json (1.15.0) lib/multi_json/adapters/oj.rb:56:in `dump' multi_json (1.15.0) lib/multi_json/adapters/oj.rb:56:in `dump' multi_json (1.15.0) lib/multi_json/adapter.rb:25:in `dump' multi_json (1.15.0) lib/multi_json.rb:139:in `dump' app/controllers/application_controller.rb:506:in `render_json_dump' app/controllers/topics_controller.rb:1387:in `block (2 levels) in perform_show_response' actionpack (7.2.2.1) lib/action_controller/metal/mime_responds.rb:224:in `respond_to' app/controllers/topics_controller.rb:1377:in `perform_show_response' app/controllers/topics_controller.rb:191:in `show' actionpack (7.2.2.1) lib/action_controller/metal/basic_implicit_render.rb:8:in `send_action' actionpack (7.2.2.1) lib/abstract_controller/base.rb:226:in `process_action' actionpack (7.2.2.1) lib/action_controller/metal/rendering.rb:193:in `process_action' actionpack (7.2.2.1) lib/abstract_controller/callbacks.rb:261:in `block in process_action' activesupport (7.2.2.1) lib/active_support/callbacks.rb:121:in `block in run_callbacks' app/controllers/application_controller.rb:427:in `block in with_resolved_locale' i18n (1.14.7) lib/i18n.rb:353:in `with_locale' app/controllers/application_controller.rb:427:in `with_resolved_locale' activesupport (7.2.2.1) lib/active_support/callbacks.rb:130:in `block in run_callbacks' activesupport (7.2.2.1) lib/active_support/callbacks.rb:141:in `run_callbacks' actionpack (7.2.2.1) lib/abstract_controller/callbacks.rb:260:in `process_action' actionpack (7.2.2.1) lib/action_controller/metal/rescue.rb:27:in `process_action' actionpack (7.2.2.1) lib/action_controller/metal/instrumentation.rb:77:in `block in process_action' activesupport (7.2.2.1) lib/active_support/notifications.rb:210:in `block in instrument' activesupport (7.2.2.1) lib/active_support/notifications/instrumenter.rb:58:in `instrument' activesupport (7.2.2.1) lib/active_support/notifications.rb:210:in `instrument' actionpack (7.2.2.1) lib/action_controller/metal/instrumentation.rb:76:in `process_action' actionpack (7.2.2.1) lib/action_controller/metal/params_wrapper.rb:259:in `process_action' activerecord (7.2.2.1) lib/active_record/railties/controller_runtime.rb:39:in `process_action' actionpack (7.2.2.1) lib/abstract_controller/base.rb:163:in `process' actionview (7.2.2.1) lib/action_view/rendering.rb:40:in `process' rack-mini-profiler (3.3.1) lib/mini_profiler/profiling_methods.rb:115:in `block in profile_method' actionpack (7.2.2.1) lib/action_controller/metal.rb:252:in `dispatch' actionpack (7.2.2.1) lib/action_controller/metal.rb:335:in `dispatch' actionpack (7.2.2.1) lib/action_dispatch/routing/route_set.rb:67:in `dispatch' actionpack (7.2.2.1) lib/action_dispatch/routing/route_set.rb:50:in `serve' actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:53:in `block in serve' actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:133:in `block in find_routes' actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:126:in `each' actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:126:in `find_routes' actionpack (7.2.2.1) lib/action_dispatch/journey/router.rb:34:in `serve' actionpack (7.2.2.1) lib/action_dispatch/routing/route_set.rb:896:in `call' lib/middleware/omniauth_bypass_middleware.rb:35:in `call' rack (2.2.13) lib/rack/tempfile_reaper.rb:15:in `call' rack (2.2.13) lib/rack/conditional_get.rb:27:in `call' rack (2.2.13) lib/rack/head.rb:12:in `call' actionpack (7.2.2.1) lib/action_dispatch/http/permissions_policy.rb:38:in `call' lib/content_security_policy/middleware.rb:12:in `call' lib/middleware/anonymous_cache.rb:410:in `call' lib/middleware/csp_script_nonce_injector.rb:12:in `call' config/initializers/008-rack-cors.rb:26:in `call' rack (2.2.13) lib/rack/session/abstract/id.rb:266:in `context' rack (2.2.13) lib/rack/session/abstract/id.rb:260:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/cookies.rb:704:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/callbacks.rb:31:in `block in call' activesupport (7.2.2.1) lib/active_support/callbacks.rb:101:in `run_callbacks' actionpack (7.2.2.1) lib/action_dispatch/middleware/callbacks.rb:30:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/debug_exceptions.rb:31:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/show_exceptions.rb:32:in `call' logster (2.20.1) lib/logster/middleware/reporter.rb:40:in `call' lib/middleware/default_headers.rb:13:in `call' railties (7.2.2.1) lib/rails/rack/logger.rb:41:in `call_app' railties (7.2.2.1) lib/rails/rack/logger.rb:29:in `call' config/initializers/100-quiet_logger.rb:20:in `call' config/initializers/100-silence_logger.rb:29:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/request_id.rb:33:in `call' lib/middleware/enforce_hostname.rb:24:in `call' rack (2.2.13) lib/rack/method_override.rb:24:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/executor.rb:16:in `call' rack (2.2.13) lib/rack/sendfile.rb:110:in `call' rack-mini-profiler (3.3.1) lib/mini_profiler.rb:334:in `call' lib/middleware/processing_request.rb:12:in `call' message_bus (4.4.1) lib/message_bus/rack/middleware.rb:60:in `call' lib/middleware/request_tracker.rb:385:in `call' actionpack (7.2.2.1) lib/action_dispatch/middleware/remote_ip.rb:96:in `call' railties (7.2.2.1) lib/rails/engine.rb:535:in `call' railties (7.2.2.1) lib/rails/railtie.rb:226:in `public_send' railties (7.2.2.1) lib/rails/railtie.rb:226:in `method_missing' rack (2.2.13) lib/rack/urlmap.rb:74:in `block in call' rack (2.2.13) lib/rack/urlmap.rb:58:in `each' rack (2.2.13) lib/rack/urlmap.rb:58:in `call' unicorn (6.1.0) lib/unicorn/http_server.rb:634:in `process_client' unicorn (6.1.0) lib/unicorn/http_server.rb:739:in `worker_loop' unicorn (6.1.0) lib/unicorn/http_server.rb:547:in `spawn_missing_workers' unicorn (6.1.0) lib/unicorn/http_server.rb:143:in `start' unicorn (6.1.0) bin/unicorn:128:in `' vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `load' vendor/bundle/ruby/3.3.0/bin/unicorn:25:in `
' ``` That鈥檚 odd the other solved topics are loads fine. I tried to looking for a pattern why but seems there is nothing special. I tried it with [safe mode](https://meta.discourse.org/t/53504?silent=true) too but the issue is still exist. * * * It鈥檚 maybe related with this update: [FEATURE: Add setting to show who marked as solved by nattsw 路 Pull Request #347 路 discourse/discourse-solved 路 GitHub](https://github.com/discourse/discourse-solved/pull/347) Thank you 馃檪 ---
### Author: ![Arkshine](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/arkshine/32/298682_2.png) [@Arkshine](https://meta.discourse.org/u/Arkshine) #### Post date: [March 26, 2025, 2:45pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/2 "2025-03-26T14:45:53Z")
Does enabling the `show_who_marked_solved` setting allow the posts to load? ---
### Author: ![Don](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/don/32/228726_2.png) [@Don](https://meta.discourse.org/u/Don) #### Post date: [March 26, 2025, 2:49pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/3 "2025-03-26T14:49:59Z")
I tried that too but unfortunately no. 馃槙 ---
### Author: ![Don](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/don/32/228726_2.png) [@Don](https://meta.discourse.org/u/Don) #### Post date: [March 26, 2025, 4:52pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/4 "2025-03-26T16:52:54Z")
So It seems the issue happens when the user (who has the accepted answer in the topic) has been deleted and the accepted post is also removed. 馃 ---
### Author: ![david](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/david/32/157490_2.png) [@david](https://meta.discourse.org/u/david) #### Post date: [March 26, 2025, 5:30pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/6 "2025-03-26T17:30:59Z")
Thanks! We鈥檒l get this sorted ---
### Author: ![nat](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nat/32/235063_2.png) [@nat](https://meta.discourse.org/u/nat) #### Post date: [March 26, 2025, 5:55pm UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/7 "2025-03-26T17:55:54Z")
This has been fixed here: [FIX: Some solved topics have no answers by nattsw 路 Pull Request #350 路 discourse/discourse-solved 路 GitHub](https://github.com/discourse/discourse-solved/pull/350) Extra note: When using custom fields, there are very little validations available so marked answers may be dangling, leading to posts that do not exist, or topics pointing to the same post. We _just_ moved discourse-solved away from using custom fields into proper tables, and there had been some assumptions made like each post should only be an answer to a topic, or a topic with an answer must point to a non-null post. All these assumptions were thrown out of the window ![yeet](https://global.discourse-cdn.com/meta/original/4X/c/e/2/ce2995c602ccaa3f6f88cb3473e0f600d34a7111.jpeg) ---
### Author: ![nat](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/nat/32/235063_2.png) [@nat](https://meta.discourse.org/u/nat) #### Post date: [March 31, 2025, 12:00am UTC](https://meta.discourse.org/t/solved-topic-cannot-be-loaded/358947/8 "2025-03-31T00:00:16Z")
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